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I'm looking for books with information about bifilar-wound coils.  Could you please give me some names?

I have two books which refer to bifilar-wound coils.  The first is Dr. Nikola Tesla Complete Patents which contains the U.S. Patent No. 512,340, COIL FOR ELECTRO-MAGNETS, described in the following claims:

1. A coil for electric apparatus the adjacent convolutions of which form parts of the circuit between which there exists a potential difference sufficient to secure in the coil a capacity capable of neutralizing its self-induction.

2. A coil composed of contiguous or adjacent insulated conductors electrically connected in series and having a potential difference of such value as to give the coil as a whole, a capacity sufficient to neutralize its self-induction as set forth.

The second book is Proceedings of the 1990 International Tesla Symposium which contains a paper by Moray B. King, "Tapping the Zero-Point Energy and Scalar Current."  The paper refers to four types of bifilar-wound coil, parallel-wound, series connected (as described above), parallel-wound, parallel connected, and the counter-wound caduceus coil, both series and parallel connected.  Also, King's paper "Demonstrating a Zero-Point Coherence" in the Proceedings of the 1988 International Tesla Symposium proposes an experiment involving the pulsed excitation of a caduceus coil surrounding a plasma tube in ion-acoustic resonance.

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